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Demographics Table

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Demographic Data Report for Iowa by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Name

County
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2023 Rural-Urban Continuum Codes Φ
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Value (Percent)
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People (Age Under 18)
 sort by sample size ascending
Rank within US
(of 3143 counties)
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United States N/A 22.2 73,645,238 N/A
Iowa N/A 23.0 736,579 16 of 52
Wright County Rural 26.1 3,343 270
Worth County Rural 20.6 1,520 2,123
Woodbury County Urban 25.9 27,420 299
Winneshiek County Rural 19.0 3,790 2,557
Winnebago County Rural 21.7 2,315 1,683
Webster County Rural 21.4 7,872 1,821
Wayne County Rural 26.3 1,714 251
Washington County Urban 24.6 5,553 545
Warren County Urban 24.6 13,172 545
Wapello County Rural 23.7 8,349 823
Van Buren County Rural 23.2 1,681 1,042
Union County Rural 23.7 2,858 823
Taylor County Rural 23.5 1,386 900
Tama County Rural 24.0 4,079 718
Story County Urban 16.4 16,200 2,956
Sioux County Rural 27.4 9,874 173
Shelby County Rural 22.8 2,686 1,209
Scott County Urban 23.4 40,786 947
Sac County Rural 22.3 2,172 1,429
Ringgold County Rural 23.2 1,081 1,042
Poweshiek County Rural 19.5 3,619 2,445
Pottawattamie County Urban 23.2 21,645 1,042
Polk County Urban 24.6 122,384 545
Pocahontas County Rural 23.0 1,622 1,127
Plymouth County Rural 24.9 6,411 492
Palo Alto County Rural 23.4 2,087 947
Page County Rural 19.2 2,908 2,514
Osceola County Rural 23.5 1,436 900
O'Brien County Rural 24.4 3,438 594
Muscatine County Rural 24.2 10,344 647
Montgomery County Rural 22.6 2,320 1,288
Monroe County Rural 23.1 1,745 1,087
Monona County Rural 22.4 1,932 1,385
Mitchell County Rural 24.0 2,534 718
Mills County Urban 23.1 3,362 1,087
Marshall County Rural 25.3 10,127 398
Marion County Rural 23.4 7,845 947
Mahaska County Rural 23.9 5,262 750
Madison County Urban 24.9 4,175 492
Lyon County Rural 28.6 3,451 117
Lucas County Rural 23.0 1,998 1,127
Louisa County Rural 22.4 2,402 1,385
Linn County Urban 22.8 52,233 1,209
Lee County Rural 21.3 7,075 1,876
Kossuth County Rural 22.3 3,251 1,429
Keokuk County Rural 22.7 2,262 1,250
Jones County Urban 20.9 4,344 2,008
Johnson County Urban 19.5 30,276 2,445
Jefferson County Rural 17.1 2,684 2,892
Jasper County Urban 22.1 8,382 1,518
Jackson County Rural 22.2 4,313 1,469
Iowa County Rural 23.5 3,888 900
Ida County Rural 24.5 1,698 572
Humboldt County Rural 23.7 2,266 823
Howard County Rural 25.6 2,419 338
Henry County Rural 21.0 4,254 1,977
Harrison County Urban 23.1 3,377 1,087
Hardin County Rural 19.2 3,217 2,514
Hancock County Rural 21.3 2,281 1,876
Hamilton County Rural 23.4 3,486 947
Guthrie County Urban 21.4 2,279 1,821
Grundy County Urban 23.6 2,917 866
Greene County Rural 21.1 1,844 1,936
Fremont County Rural 21.9 1,441 1,606
Franklin County Rural 24.4 2,439 594
Floyd County Rural 22.6 3,508 1,288
Fayette County Rural 21.4 4,145 1,821
Emmet County Rural 19.5 1,817 2,445
Dubuque County Urban 22.7 22,431 1,250
Dickinson County Rural 19.2 3,433 2,514
Des Moines County Rural 21.9 8,444 1,606
Delaware County Rural 23.4 4,115 947
Decatur County Rural 22.6 1,730 1,288
Davis County Rural 29.9 2,730 79
Dallas County Urban 26.8 27,939 209
Crawford County Rural 25.3 4,121 398
Clinton County Rural 22.7 10,532 1,250
Clayton County Rural 21.7 3,708 1,683
Clay County Rural 23.1 3,803 1,087
Clarke County Rural 25.5 2,474 355
Chickasaw County Rural 23.3 2,769 1,001
Cherokee County Rural 21.8 2,522 1,646
Cerro Gordo County Rural 21.0 8,964 1,977
Cedar County Rural 21.5 3,953 1,784
Cass County Rural 23.6 3,090 866
Carroll County Rural 24.1 4,986 687
Calhoun County Rural 21.8 2,152 1,646
Butler County Rural 22.5 3,215 1,340
Buena Vista County Rural 26.7 5,521 215
Buchanan County Rural 25.7 5,308 324
Bremer County Urban 22.6 5,677 1,288
Boone County Urban 20.9 5,581 2,008
Black Hawk County Urban 21.9 28,679 1,606
Benton County Urban 23.1 5,941 1,087
Audubon County Rural 22.2 1,249 1,469
Appanoose County Rural 21.4 2,621 1,821
Allamakee County Rural 24.1 3,386 687
Adams County Rural 21.9 796 1,606
Adair County Rural 23.0 1,715 1,127
Notes:
Created by statecancerprofiles.cancer.gov on 07/05/2025 9:04 pm.

Φ Rural-Urban Continuum Codes provided by the USDA.

Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.

Data for United States does not include Puerto Rico.

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